Gas-lighting apparatus.



PATENTED NOV. 8, 1904.

D. J. CLARK.

GAS LIGHTING APPARATUS.

APPLICATION FILED NOV. 30, 1903.

N0 MODEL.

iiiiiizmf UNITED STATES Patented November 8, 1904.

PATENT ()EETCE.

DANIEL J. CLARK, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO MARTHA ELDRIDGE, OF JERSEY CITY, NEW JERSEY.

GAS-LIGHTING APPARATUS.

SPECIFICATION formingpart of Letters Patent No; 774,562,.dated November 8, 1904. Application filed November 30, 1903- Serial No. 183,142. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL J. CLARK, acitizen of the United States, and aresident of J ersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Gas-Lighting Apparatus, of which the following is a specification.

The subject of the present invention is a novel incandescent gas-lighting apparatus and fixture therefor, the more prominent objects of the invention being economy of gas consumption, together with highly-increased efficiency in the matter of illumination.

With the above and other purposes in view the invention comprises a novel construction of gas-burner provision cooperating with a peculiar form of incandescent frame or mantle, as will fully appear hereinafter, whereby the illuminating element presents an incandescent annulus of high illuminating as well as unique effect.

The efiiciency of the burner provision is greatly promoted by embodying it in a head containing a central chamber, from which radiate a plurality of burner-conduits proper, a reticulated cup-shaped section being located in said chamber for the purpose of dividing the gas or gas and air passing to the burnerconduits in the form of numerous independ-v ent jets or streams.

. Serving with the burner provision and novel illuminating frame or mantle is a fixture embodying a gas and air mixing device, whereby a combustible fluid is delivered to the burner provision, the mixing device being equipped with simple hand-operated means whereby the proportion of air in the combustible mixture may be readily varied.

There are otherimportant features connected with the invention, which besides those alluded to are clearly set forth in the subsequent detailed description.

in the accompanying drawings, forming part of this specification, Figure l is a vertical elevational view of an incandescent gaslighting apparatus and fixture therefor embodying my invention. Fig. 2 is a vertical sectional view showing, on an enlarged scale, the burner provlsion, frame, or mantle, and

a part of the fixture. Fig. 3 is a somewhat similar view of a contiguous portion of the fixture. Fig. L is afragmentary plan View of the burner-head.

Similar reference characters are employed to designate corresponding parts in the several figures of the drawings wherein they occur.

The fixture is shown as comprising a vertically-depending tube A, the upper extremity of which is suitably connected with the gassupply at the ceiling B through the medium of the threaded nipple b, the lower end of the tube A being screw-connected with the intake of the casing'G of the gas-cock. This latter is of the type .involving a revoluble plug C, disclosed as operable by a bar c,having rings or pendants c at its respective ends. These features are of minor importance, however, and may be varied to suit the taste of theuser or meet different requirements.

The elbow discharge 0 of the casing 0 connects with the intake of a box D, shown as having a cylindrical body containing radial perforations (Z, such body being embraced by a revoluble sleeve D, with perforations d adaptedv to be brought into registration with the perforations cl to a greater or less extent, dependent upon the position to which the sleeve is revolubly adjusted.

To the outlet-nipple (Z of the box is attached one end of a horizontal tubular arm E, the forward end 6 of which curves downwardly and has a gas-tight connection with the'upper part of the burner-head F. This latter is in the form of a casting embodying a central cylindrical portion containing a chamber f. Equidistantly radiating from the head F are a plurality of downwardly-turned burners F, the passages of which communicate at their inner ends with the chamber f. Each burner has an intermediately-located outer horizontally-projectinglug f, containing a vertical channel extending the rethrough, such channel being intersected by a threaded horizontal passage opening at the outer end of the lug.

A thumb-screw f bears in the horizontal passage of each lug.

By reference to Fig. 2 it Will be noted that the head F is closed at its upper side by a top section f, to which the bend e is connected.

This arrangement admits of the convenient introduction within the chamber f, of a cupshaped section G of reticulated material, which rests upon the bottom of the chamber and is retained against lateral movement by its upper portion being in bearing contact with an inwardly-projecting horizontal shoulder f Clamped by the screws f in the burnerlugs f are the vertical members it of angular hangers H, the inwardly-extending horizontal portions of which span and have connected thereto a frame or mantle I. This frame or mantle may be of the material familiarly employed in the manufacture of the WVelsbach mantles of commerce or any other suitable material capable of high incandescence under gas-flame impingement; but the said frame I is peculiarly configurated and conditioned, however, and is in the form of an annulus concavo'convex in cross-section, with its concentric edges uppermost and between which the burner-tips slightly depend, the arrangement thus involving a highly novel mantle, common to all the burners and which by reason of its convex surface being lowermost will when viewed from a lower plane present a highly artistic ring or annulus of great illuminating capacity.

The incandescing operation is considerably augmented by the employment of a glass globe J, surrounding the lower provision and mantle I, such globe being suspended by having its upper flanged portion 1' engaged by the thumb-screws of a frame J clamped on the fixture and all serving in a manner well understood.

The globe J contains a bottom opening of comparatively liberal dimensions for aiding in the gas combustion and an upward circulation to carry ofi the heat.

From the description thus far it will be readily comprehended that gas flowing by way of the tube A and cook C in the required volume, according to the position of the cock, will in passing through the box D induct air in volume proportionate with the adjusted area of the openings (Z cl, such air becoming commingled with the gas and resulting in a highly combustible mixture, which is conveyed to the chamber f of the head F. The combustible mixtureleaves the chamber f by way of the burner-passages, but in doing so passes through the sides of the reticulate section Gr, whereby the mixture is divided into numerous small streams or jets, thus insuring more intimate combination of the air and gas as well as promoting its combustibility at the burner-mouths.

The relation of the burner-flames with regard to the mantle I will effect the incandes cence of the latter, as will be readily appreciated. The employment of the globe J so aids in the ascension of the heat products that l I l l the burner-flames will be drawn more or less in an efficient manner down within the depressed part of the mantle, and consequently accomplishes the thorough incandescence of said mantle.

I prefer to suspend above the incandescent lighting apparatus a heat-bell carried at the outer end of a horizontal arm K, adjustably secured on the tube A by means of a collar 7:; and clamping-screw 7:.

Manifestly the reticulated section G will prevent back flash being communicated to the body of mixture within the chamber f, while the removable character of the top section f of the head F permits said reticulated section to be readily removed when desired for cleaning, repair, or substitution.

The improved incandescent gas-1i ghting apparatus and its fixture are comparatively simple in construction. The lighting apparatus can be operated with but little attention and will furnish a large volume of light under exceedingly economical conditions. Furthermore, the unique character of the incandes cing frame or mantle renders it highly attractive as well as materially avoids the shadows frequently experienced in connection with other forms of mantles.

I do not desire to be understood as limiting myself to the particular construction and arrangement of parts shown and described, but reserve the right to all modifications within the scope of my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent. is

1. An incandescent gas-burner comprising a head containing a chamber, and a plurality of burners radially projecting from said head, and communicating with the chamber therein, said burners having outer downward bends, and an incandescent mantle suspended from said burners and common to all the downward bends thereof.

2. An incandescent gas-burner comprising a head containing a chamber, and a plurality of burners radially projecting from said head and communicating with the chamber therein, said burners having outer downward bends, a reticulated section within said chamber and a horizontally disposed incandescent mantle suspended from said burners and common to all the downward bends thereof.

3. The combination with an incandescent burner comprising a chambered head having a plurality of downwardly-turned burners radiall y projecting therefrom, of a horizontallydisposed incandescent mantle of ring form and concavo-convex in cross-section with its concavo side uppermost, and means supporting said. mantle whereby the mouths of said burners depend within the concavity of the mantle.

4c. The combination with an incandescent burner comprising a chambered head having a plurality of downwardly-turned burners radially projecting therefrom, of a horizontallydisposed incandescent mantle of ring form, and means adjustably supporting said mantle 5 with respect to the mouths of the burners.

5. The combination with an incandescent burner comprising a chambered head having a plurality of burners radially projecting therefrom and having outer downward bends, IQ of a horizontally-disposed incandescent mantle of ring form suspended from-said burners and common to all the bends thereof, and a globe having a bottom opening and incasing the head, burners and mantle.

Signed at New York, in the county of New I5 York and State of New York, this 21st day of November, A. D. 1903.

DANIEL J. CLARK. VVitnes'ses:

OHAs. L. WOLF, M. BENDER 

